Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0924697d815e569…

MALICIOUS

PDF

75.1 KB Created: 2020-11-10 17:25:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: e8332f3c5eef6ef9d248d2e203475822 SHA-1: f98fef661db6a8e4007a94dbc12724e0ca725855 SHA-256: d0924697d815e569f6f95eeb75d7f6a0ba9a00098e5c77fb64684385ee7527b2
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://trafffe.ru/123?keyword=bose+instruction+manuals PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405197/normal_5f9b46c22420e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367951/normal_5f8bc99bc8fe4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/21fd583b-a848-4d9b-861e-07b935c55cae/jidategujitesanili.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1321bf1-66c1-4826-89f8-d24ebd2da2a9/doretop.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/jetblue_airlines_contest.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/57119397497.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/138b2de2-edba-44e4-ba99-ff631f80465c/93990412564.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2df9cfde-b4af-4214-82a5-81b567440687/verbe_essuyer_au_prsent_de_l_indica.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b560f5ee-b2e2-4167-81e7-5effbc9b4df7/86982895592.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/438e6d01-3ede-4c72-b644-b9815d75ab78/doberanabazijopijuxefet.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c31f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC31F 9004 bytes
SHA-256: 415c671166b79fe8669a955144abcf781e8df605b8c759fe3ffaae8c72466482
font_01_sfnt_off0000e0ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0EF 4876 bytes
SHA-256: aef911c21b7e7463b2253130fb486e68d23fa676a63b87298d330100dbfead34
font_02_sfnt_off0000f15f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15F 9428 bytes
SHA-256: 802e8cf725dade6f711c3f82eccafe2e5ed2f644a4d87306f312dc3b2fc4edf0
font_03_sfnt_off000111b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111B3 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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